Energy transfer mechanism of Sr_4Al_(14)O_(25):Eu~(2+) phosphor |
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| Authors: | LI Qun ZHAO Junwu SUN Feilong |
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| Affiliation: | [1]School of Science [2]Xi an Jiaotong University [3]School of Life Science & Technology |
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| Abstract: | Long lasting blue-green-emitting Sr4Al14O25:Eu2+ phosphors were synthesized by solid-state reactions.The phosphors were investigated by X-ray diffraction(XRD) and fluorescence spectrophotometer.A pure phase of Sr4Al14O25:Eu2+ phosphor was obtained at 1250 °C.There are two different types of Eu emission centers in Sr4Al14O25:Eu2+ phosphor.The effects of the Eu2+ concentration and the reducing temperature on the distribution of Eu2+ among different sites were investigated.The energy transfer mechanism between... |
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| Keywords: | Sr4Al14O25:Eu2+ phosphor phase transition energy transfer mechanism rare earths |
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